Vulnerability · Published May 9, 2026 · Assigned by VulDB

CVE-2026-8196JeecgBoot mLogin Endpoint LoginController.java authorization

Low 3.7

In plain English

A low-severity authorization bypass via user-controlled key in JeecgBoot. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.

Severity (CVSS 3.1)3.7Low

Exploit odds (30 days)0.5%top 59.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack tooling1Public PoC

Official description

A flaw has been found in JeecgBoot 3.9.1. The impacted element is an unknown function of the file jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/system/controller/LoginController.java of the component mLogin Endpoint. This manipulation causes authorization bypass. The attack is possible to be carried out remotely. The attack is considered to have high complexity. The exploitability is regarded as difficult. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products (as reported)

Vendor	Product	Versions
n/a	JeecgBoot	3.9.1

Weakness: CWE-639, CWE-285 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R

References

VDB-362348 | JeecgBoot mLogin Endpoint LoginController.java authorization vdb-entry
VDB-362348 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #803529 | jeecgboot JeecgBoot 3.9.1 Authorization Bypass third-party-advisory
https://github.com/xpp3901/CVE_APPLY/tree/main/V-009_mLogin_Captcha_Bypass exploit